List of top Chemistry Questions

Carbon monoxide forms volatile compound with
An element belonging to chalcogen group is
Energy associated with the first orbit of $ {He^+}$ is
In the following compound, the number of ?sp? hybridized carbon is
Which one of the following alcohols is known as wood?s spirit?
What will be $p H$ of the following half-cell $Pt, H _{2} H _{2} SO _{4}$ ? The oxidation potential is $+ 0.3\,V.$
The maximum number of electrons in an , subshell is given by the expression
The correct order of increasing polarising power of the cations in the following is $ AlCl_3,MgCl_2, NaCl $
The correct order of hybridisation of the central atom in the following species $NH _{3},\left[ PtCl _{4}\right]^{2-}, PCl _{5}\left[ BCl _{4}\right]^{-}$
Television picture tubes are
Polymer with low degree of polymerisation is known as
In the lead-acid battery during charging, the cathode reaction is
$Fe^{3+}$ is reduced to $Fe^{2+}$ by using -
The correct statement(s) about $Cr^{2+}$ and $Mn^{3+}$ is (are) - [Atomic numbers of $Cr = 24$ and $Mn = 25$]
Amorphous solids are characterised by property as
The IUPAC name of the coordination compound $\left[ Co \left( H _{2} O \right)_{2}\left( NH _{3}\right)_{4}\right] Cl _{3}$ is
The electronegativity of elements helps in predicting
$20\, dm^{3}$ of $SO_{2}$ diffuse through a porous partition in $60\, s$. What volume of $O_{3}$ will diffuse under similar conditions?
Which one of the following is planar?
Which of the following has maximum number of isotopes?
Which of the following metals does not show variable valency in $d$-block?
Which of the following oxyacids does not exist ?
Which one of the following is not a condensation polymer ?
Which arrangement of electrons leads to ferromagnetism?
The unit of ebullioscopic constant is ______.